Useful tips for everyday
Is 400V 3 phase or single phase? For most markets, the three-phase voltage value is 400V between phases and 230V between phase and neutral. Like…
Can You auto update the drop down list in Excel? But if you add new data in the cell below the original data range, the…
How fast can Arduino ADC sample? Arduino itself provides a convenient way to read analog input using analogRead() function. Without going into much details, the…
What does address mean in hex IDA Pro? This addressing mode refers to memory relative to the next instruction (not the current, because RIP points…
How do I count the number of columns in Oracle? select table_name, count(*) from all_tab_columns where owner = ‘SOME_USER’ group by table_name order by table_name;…
Is Spark good for ML? Apache Spark provides a very powerful API for ML applications. Its goal is to make practical ML easy. It has…
Why margin top is not working? This issue is known as Margin Collapse and happens sometimes between top and bottom margins on block elements. That’s…
What is the relationship between user and roles? A role is a group of permissions. Roles can be assigned to any user or user group…
How do I backup my local notes on my iPhone? Backup Using iCloud Tap the “Settings” app, and select “iCloud.” Enter your information into the…
Why use strongSwan? strongSwan is a complete IPsec solution providing encryption and authentication to servers and clients. connecting locally. Gateway: The gateway is usually your…